gelignite

例句：

1. 1.The geological team used this method to study the geignite formation process.
   地质队使用这种方法研究了凝胶岩的形成过程。
2. 2.The geignite is a type of coal that has been processed into various products.
   凝胶岩是一种经过加工的煤炭，可以制成各种产品。
3. 3. Geignite is a rare and valuable resource, and its extraction requires advanced technology.
   凝胶岩是一种稀有且宝贵的资源，其提取需要先进的技术。